Hi there.

I'm trying to 3D-print a chainguide but I'd like to use a reliable source technical design details about the standards that dictate mounting brackes, i.e High Direct Mount, Low Direct Mount, ISCG 05, braze-on et cetera.

Is there such an "encyclopedic" source or is it just scattered over the Internet?

Maybe useful for who doesn't know yet; i found some from SRAM:
Frame Fit Specification
but I still need more just out of curiosity